Uploaded by u/Subsourian to Reddit.

"A find I think people might be interested in for the collection, the battle.net beta they did for SC1 in 1997. Sadly being a multiplayer only beta, it only connects to Battle.net servers that no longer exist, so it technically isn’t playable, but the internal files do have some bits that apparently didn’t make it in the final game like sprites for air units banking when they turn, so if you want to try your hand at digging through it, I link the iso I made of the disk below:

https://www.dropbox.com/s/7oao3gibr8plqdy/StarCraftBeta.iso?dl=0

Apparently most modern tools don't work great at extracting the bits of it since everything's incompatible, but still someone might find value in searching through it."